<?PHP //$Id: block_participants.php,v 1.33.2.2 2008/03/03 11:41:03 moodler Exp $

class block_participants extends block_list {
	function init() {
		$this->title = get_string('people');
		$this->version = 2007101509;
	}

	function get_content() {

		global $CFG, $COURSE;

		if (empty($this->instance)) {
			$this->content = '';
			return $this->content;
		}

		// the following 3 lines is need to pass _self_test();
		if (empty($this->instance->pageid)) {
			return '';
		}
		
		$this->content = new object();
		$this->content->items = array();
		$this->content->icons = array();
		$this->content->footer = '';
		
		/// MDL-13252 Always get the course context or else the context may be incorrect in the user/index.php
		if (!$currentcontext = get_context_instance(CONTEXT_COURSE, $COURSE->id)) {
			$this->content = '';
			return $this->content;
		}
		
		if ($COURSE->id == SITEID) {
			if (!has_capability('moodle/site:viewparticipants', get_context_instance(CONTEXT_SYSTEM))) {
				$this->content = '';
				return $this->content;
			}
		} else {
			if (!has_capability('moodle/course:viewparticipants', $currentcontext)) {
				$this->content = '';
				return $this->content;
			}
		}

		$this->content->items[] = '<a title="'.get_string('listofallpeople').'" href="'.
								  $CFG->wwwroot.'/user/index.php?contextid='.$currentcontext->id.'">'.get_string('participants').'</a>';
		$this->content->icons[] = '<img src="'.$CFG->pixpath.'/i/users.gif" class="icon" alt="" />';

		return $this->content;
	}

	// my moodle can only have SITEID and it's redundant here, so take it away
	function applicable_formats() {
		return array('all' => true, 'my' => false, 'tag' => false);
	}

}

?>
